In our analysis, we employ CTEQ6L [1]} for the PDF
with a factorization scale \(Q=M_{Z^\prime }\) .
We then simply express the \(Zh\)  production cross section by
\(\sigma ( pp \rightarrow Z^\prime \rightarrow Zh)\simeq \sigma ( pp \rightarrow Z^\prime ) \times {\rm BR}(Z^\prime \rightarrow Zh).\) 
